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How to find all duplicate from a List? [duplicate]
...ave a List<string> which has some words duplicated. I need to find all words which are duplicates.
9 Answers
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Process escape sequences in a string in Python
...ything in the pattern 'string escape', 'string@escape" and whatnot... basically 'string\W+escape'
– Nas Banov
Oct 26 '10 at 5:18
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ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'
I installed MySQL on Mac OS X Mountain Lion with homebrew install mysql , but when I tried mysql -u root I got the following error:
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How to see full query from SHOW PROCESSLIST
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@giorgio79: If I recall correctly, phpMyAdmin truncates all string results. It's been four years since I did any web development, though, so I could very well be mistaken.
– James McNellis
Aug 28 '12 at 15...
nil detection in Go
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In addition to Oleiade, see the spec on zero values:
When memory is allocated to store a value, either through a declaration or a call of make or new, and no explicit initialization is provided, the memory is given a default initialization. Each element of such a value is set to the zero valu...
Signal handling with multiple threads in Linux
...ote that this is specific to SIGUSR1, which IIRC doesn't interrupt system calls. If you tried this with SIGINT for example, it could interrupt a stream read, and when you went to return to reading, the stream may return an error that it was interrupted.
– Alan
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Android: Temporarily disable orientation changes in an Activity
...r, I noticed that if I rotate my phone it restarts the activity which is REALLY bad for the process that was running, and I get a Force Close.
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What is the difference between String.Empty and “” (empty string)?
...ich makes string.Empty more efficient.
In version 2.0 and later of .NET, all occurrences of "" refer to the same string literal, which means "" is equivalent to .Empty, but still not as fast as .Length == 0.
.Length == 0 is the fastest option, but .Empty makes for slightly cleaner code.
See the ...
C++: const reference, before vs after type-specifier
...const*.)
As a matter of style
Regarding which you should prefer stylistically, however, I'll dissent from a lot of the other answers and prefer const T& (and const T*):
const T& is the style used in Stroustrup's The C++ Programming Language book.
const T& is the style used in the C++...
Split string into array of character strings
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This is indeed a regex-expression, called a negative lookahead. Checkout the documentation here: docs.oracle.com/javase/6/docs/api/java/util/regex/…
– Erwin
May 28 '14 at 8:51
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